A sidelink connection is created between each device of a plurality of devices. If the sidelink connection quality is not sufficient to transmit a first version of a segment encoded at a first quality level, a lower quality version of the segment may also be retrieved. The lower quality version of the segment may be retrieved by a different device than the device that retrieved the first version of the segment. If the segment is requested from a first device by a second device and the sidelink connection between the first device and the second device is not sufficient to transmit the first version of the segment, the first device may cause transmission of the lower quality version of the segment retrieved by a third device to the second device.
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7. The method of claim 1, wherein the first version of the segment and the second version of the segment are stored in a cache of a second device assigned by the sidelink connection to cache segments of the media.
This invention describes a method for delivering media segments among multiple devices using cooperative device-to-device (D2D) sidelink connections. When a device needs a media segment, the system assesses the sidelink connection quality. If the connection isn't good enough for a high-quality version of the segment, a lower-quality version is also obtained, potentially by a different device. If a segment is requested, and the sidelink cannot support the high-quality version, the system facilitates the delivery of the lower-quality version to the requesting device, possibly sourced from another device. Crucially, both the high-quality and low-quality versions of these media segments are specifically stored in a cache belonging to a second device. This second device is explicitly assigned by the sidelink communication framework to serve as a media segment cache for the network.
17. The system of claim 11, wherein the first version of the segment and the second version of the segment are stored in a cache of a second device assigned by the sidelink connection to cache segments of the media.
This invention details a system for cooperative media delivery among multiple devices utilizing device-to-device (D2D) sidelink connections. The system is designed to create sidelink connections between devices and evaluate their quality for transmitting media segments. If the connection quality is insufficient for a high-quality version of a segment, the system also retrieves a lower-quality version, potentially via a different device. When a device requests a segment and the sidelink cannot support the high-quality version, the system facilitates the transmission of the lower-quality segment to the requesting device, possibly sourced from a third device. A key component of this system is a second device equipped with a cache, where both the high-quality and lower-quality versions of the media segments are stored. This second device is specifically assigned by the sidelink communication infrastructure to perform this media segment caching function.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
August 30, 2022
March 19, 2024
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